28751315701 has 4 divisors (see below), whose sum is σ = 28804461004. Its totient is φ = 28698170400.

The previous prime is 28751315683. The next prime is 28751315731. The reversal of 28751315701 is 10751315782.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5220062500 + 23531253201 = 72250^2 + 153399^2 .

It is a cyclic number.

It is not a de Polignac number, because 28751315701 - 2²⁹ = 28214444789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28751315731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26571840 + ... + 26572921.

It is an arithmetic number, because the mean of its divisors is an integer number (7201115251).

Almost surely, 2^28751315701 is an apocalyptic number.

It is an amenable number.

28751315701 is a deficient number, since it is larger than the sum of its proper divisors (53145303).

28751315701 is an equidigital number, since it uses as much as digits as its factorization.

28751315701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53145302.

The product of its (nonzero) digits is 58800, while the sum is 40.

The spelling of 28751315701 in words is "twenty-eight billion, seven hundred fifty-one million, three hundred fifteen thousand, seven hundred one".